Local Calling Guide

Rate centre information

Search by rate centre (exchange) name, region, area code, LATA. Enter full or partial name. Use official postal abbreviations for province/state/territory.

Waterloo, MD [Prefix detail]

LATA: 238 BALTIMORE MD

LIR:

V: 05549 H: 01583

ILEC: 9212 VERIZON MARYLAND, INC.

Includes all or part of:

NPA 410:

799 904

NPA 443:

284 296 620 661 733 737 755 899

NPA 667:

374

See all [Local Prefixes]

Local calling TO: [Reverse direction]

OCNRate centrePlan typeCall typeMonthly limit (minutes)NoteEffective date
Arbutus, MD     
Armiger-Gibson Island, MD     
Baltimore, MD     
Brooklyn Park-Linthicum, MD     
Catonsville, MD     
Chase, MD     
Cockeysville, MD     
Columbia, MD     
Dundalk, MD     
Elkridge, MD     
Ellicott City, MD     
Essex, MD     
Fork, MD     
Glen Burnie, MD     
Laurel, MD     
Laurel (Baltimore LATA), MD     
Millersville, MD     
Odenton, MD     
Parkville, MD     
Pikesville, MD     
Randallstown, MD     
Reisterstown, MD     
Severn, MD     
Severna Park, MD     
Sparrows Point, MD     
Towson, MD     
Waterloo (Washington DC LATA), MD     
Woodlawn, MD     

*If OCN is blank, this indicates the default local calling area for all carriers. If OCN is not blank, then local calling is available for that OCN only.

Last updated: Sun, 26 Jan 2025 15:59:20 UTC

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